Another Unicode text bug has been discovered impacting Apple’s ‘iMessage’ that’s capable of crashing your phone by overloading the app.

Nicknamed the “Black Dot of Death,” the bug contains a black dot emoji but it’s not this visual that’s the culprit. The message contains a length string of invisible Unicode characters that’s said to cause your phone to freeze.

Affected users found their phones crashing each time they tried to open the ‘iMessage’ app. Force quitting alone does not help as the phone continually loads the characters.

According to 9to5Mac, since the message runs on Apple’s iOS software, it is capable of affecting various devices operating on iOS 11.3 and iOS 11.4, including the iPhone, iPad and possibly the Apple Watch.

There is, however, a solution involving several steps to overcome the issue. First, users need to force close the ‘iMessage’ app, then navigate through the ‘Home’ screen and use the 3D Touch to access the ‘iMessage’ app again, before selecting ‘New Message’.